Blue-insulated PIDG receptacle for 14-16 AWG
The 640931-2 is a female quick-disconnect receptacle in TE's Faston PIDG series, accepting 14-16 AWG wire with a 0.110" (2.79mm) tab width and 0.250" (6.35mm) tab length. The tin-plated brass contact is crimp-terminated for free-hanging in-line use; the blue non-mating end insulation covers the barrel to prevent accidental shorts.
